Question: What is the source location of the group Megadeth, that has a border to Pasadena?
Paraphrase: What is the source region of the team Megadeth, that has a border to Pasadena?
SPARQL (Wikidata): SELECT ?answer WHERE { wd:Q83431 wdt:P740 ?answer . ?answer wdt:P47 wd:Q485176}
Answer: Los Angeles